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assiduous

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assiduousˈsɪʤəwəs/adjective
assiduous
ˈsɪʤəwəs/
adjective
Learner's definition of ASSIDUOUS  
[more assiduous; most assiduous]formal
: showing great care, attention, and effort

— assiduity

/ˌæsəˈduːwəti/British/ˌæsəˈdjuːwəti/noun,[noncount]

— assiduously

adverb

— assiduousness

noun,[noncount]
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